counter for iweb
Website
Silicon Photonics

Published book, click here

Entries in service providers (10)

Friday
Apr052013

Software-defined networking: A network game-changer?

Q&A with Andrew Lord, head of optical research at BT, about his impressions following the recent OFC/NFOEC show.

OFC/NFOEC reflections: Part 1


"We [operators] need to move faster"

Andrew Lord, BT

 

 

 

 

 

Click to read more ...

Monday
Apr012013

Telcos eye servers & software to meet networking needs

  • The Network Functions Virtualisation (NFV) initiative aims to use common servers for networking functions
  • The initiative promises to be industry disruptive

 

"The sheer massive [server] volumes is generating an innovation dynamic that is far beyond what we would expect to see in networking"

Don Clarke, NFV

 

Click to read more ...

Wednesday
Feb132013

The role of software-defined networking for telcos

The OIF's Carrier Working Group is assessing how software-defined networking (SDN) will impact transport. Hans-Martin Foisel, chair of the OIF working group, explains SDN's  importance for operators.

Briefing: Software-defined networking

Part 1: Operator interest in SDN

 

"Using SDN use cases, we are trying to derive whether the transport network is ready or if there is some missing functionality"

Hans-Martin Foisel, OIF

 

Click to read more ...

Tuesday
Oct252011

100 Gigabit: An operator view

Gazettabyte spoke with BT, Level 3 Communications and Verizon about their 100 Gigabit optical transmission plans and the challenges they see regarding the technology.

 

Briefing: 100 Gigabit

Part 1: Operators 

Operators will use 100 Gigabit-per-second (Gbps) coherent technology for their next-generation core networks. For metro, operators favour coherent and have differing views regarding the alternative, 100Gbps direct-detection schemes. All the operators agree that the 100Gbps interfaces - line-side and client-side - must become cheaper before 100Gbps technology is more widely deployed.

 

"It is clear that you absolutely need 100 Gig in large parts of the network"

Steve Gringeri, Verizon

 

 

Click to read more ...

Wednesday
Mar092011

Operators want to cut power by a fifth by 2020

Briefing: Green ICT

Part 2: Operators’ power efficiency strategies

Service providers have set themselves ambitious targets to reduce their energy consumption by a fifth by 2020. This despite the expected traffic they will carry being thirty times today’s volumes. Given the cost of electricity and operators’ requirements, such targets are not surprising: KPN, with its 12,000 sites in The Netherlands, consumes 1% of the country’s electricity.

 

“We also have to invest in capital expenditure for a big swap of equipment – in mobile and DSLAMs"

Philippe Tuzzolino, France Telecom-Orange

Click to read more ...

Tuesday
Sep142010

AT&T domain suppliers

Date

Domain

Partners

Sept 2009

Wireline Access 

Ericsson

Feb 2010

Radio Access Network

Alcatel-Lucent, Ericsson

April 2010

Optical and transport equipment 

Ciena

July 2010

IP/MPLS/Ethernet/Evolved Packet Core

Alcatel-Lucent, Juniper, Cisco

 

The table shows the selected players in AT&T's domain supplier programme announced to date.

AT&T has stated that there will likely be eight domain supplier categories overall so four more have still to be detailed.

Looking at the list, several thoughts arise:

Click to read more ...

Monday
Jul122010

ROADMs: reconfigurable but still not agile

Briefing: Dynamic optical networks

Part 2: Wavelength provisioning and network restoration

How are operators using reconfigurable optical add-drop multiplexers (ROADMs) in their networks? And just how often are their networks reconfigured? gazettabyte spoke to AT&T and Verizon Business.

Operators rarely make grand statements about new developments or talk in terms that could be mistaken for hyperbole. 

“You create new paths; the network is never finished”

Glenn Wellbrock, Verizon Business

Click to read more ...